Here's why you never see Prince William wearing a wedding ring

• Prince William (formally known as the Duke of Cambridge) married Kate Middleton in 2011.• But eagle-eyed royal family fans have noticed that he doesn't wear a wedding ring.• The simple reason why: He just doesn't like wearing jewelry.

After five years of marriage and two adorable children, The Duke and Duchess of Cambridge, William and Kate, still look like they're very much in love. But many observers have noticed something interesting about the couple: Despite their apparent matrimonial bliss, William has never worn a wedding ring.

It's true: Look through the many thousands of pictures of the royal couple online and you won't find a single one in which he's sporting a ring on his left hand.

Royal family fans need not fear — the lack of ring doesn't signal impending divorce. William just doesn't want to wear one.

In fact, the royal family released a statement before the couple's 2011 wedding to confirm that William wouldn't wear a ring because of "personal preference," Time reported.

"It was something the couple discussed but Prince William isn't one for jewelry," a Palace aide said. (No word on why he's averse to rings but always seems to be wearing a watch, however.)

After the ceremony, Kate and William greeted adoring fans. He wasn't wearing a ring. Getty/Christopher Furlong

William isn't the only male royal who eschews a wedding band. The Queen's husband, Prince Philip, doesn't wear one either — and a photo timeline of their marriage reveals that he hasn't for many years.

The Queen and Prince Philip. AP/Matt Dunham

But other male royals do wear a ring. The BBC reports that Prince Charles (William's father) wears a wedding ring to signify his second marriage. News photos show that Prince Andrew, Duke of York, wore one on his pinky before his divorce, and Prince Edward, Earl of Wessex, still wears his.